AISI 429

AISI 429

Stainless steel grade 429 is a ferritic steel. It is also known as AISI Type 429 chromium steel. This steel possesses good corrosion resistance, and its weldability is better than 430 steel.

Chemical Composition


Element Content(%)
Chromium, Cr 14-16
Silicon, Si 1
Manganese, Mn 1
Carbon, C 0.12
Phosphorous, P 0.04
Sulfur, S 0.03
Iron, Fe Balance

Mechanical Properties


Properties Metric Imperial
Tensile strength (annealed) 490 MPa 71068 psi
Yield strength (annealed/ @strain 0.200 %) 310 MPa 44961psi
Modulus of elasticity 200 GPa 29007 ksi
Poisson’s ratio 0.27-0.30 0.27-0.30
Elongation at break (In 2", 50% cold worked) 30% 30%
Hardness, Rockwell B (annealed) 88 88

Sheets / Plates

Production Route Hot Rolled, Cold Rolled
Material Standard AISI, ASTM, ASME, DIN, BS, EN, ISO, JIS, GOST, SAE, IS & Custom Chemistry
Size Width from 100mm to 3000mm ; Length from 500mm to 12000mm
Thickness 0.1mm to 400mm
Delivery Condition As Rolled, Annealed, Quenched and Tempered, Normalized
Surface Finish Plain, Brushed, Cladded

AISI 429 Equivalent Grade / Specifications

  • ASTM A176
  • SAE 51429

AISI 429 Applications

  1. Structures in Buildings, bridges, railway stations
  2. Fabrication of pipeline components & Industrial equipment
  3. Construction of automotive bodies, warehouses, shipping containers
  4. Commercial appliances, etc.